CN103822595B - Apparatus and method for determining the relative position of two coupling spindles - Google Patents
Apparatus and method for determining the relative position of two coupling spindles Download PDFInfo
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- CN103822595B CN103822595B CN201310581105.6A CN201310581105A CN103822595B CN 103822595 B CN103822595 B CN 103822595B CN 201310581105 A CN201310581105 A CN 201310581105A CN 103822595 B CN103822595 B CN 103822595B
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- axle
- data
- irradiation position
- light beam
- measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Gyroscopes (AREA)
Abstract
The present invention relates to a kind of be used to determine first axle（10）With by coupling（14）The second axle being connected with first axle（12）Relative position device, with for being placed on the first measuring unit on the outer surface of first axle, for the second measuring unit being placed on the outer surface of the second axle, wherein at least one described two measuring units have for producing at least one light beam（22）Part（20）And at least one described two measuring units have detection part（24,25,26）, surface is detected at least one to obtain the light beam（24,25,26）On irradiation position, wherein at least one described two measuring units be configured with least one for obtain the axle the anglec of rotation sensor（28）Respective spin angular position, angular velocity and the angular acceleration of the axle are determined wherein in multiple measurement positions by the sensing data, the quality evaluation of ancillary data is carried out for each single measurement position by predetermined standard wherein, if and wherein the quality evaluation of data is less than threshold value, it is determined that axle excludes the data of the measurement position from consideration when deviateing or gives its relatively low weight.
Description
Technical field
The present invention relates to a kind of for determining first axle and the relative position by coupling and the second axle that first axle connects
The apparatus and method put, wherein the first measuring unit is arranged on the outer surface of first axle, are arranged on the outer surface of the second axle
Second measuring unit.At least one said two measuring units with for produce at least one light beam part, and
At least one described two measuring units have detection part, are related to the light beam with acquisition and detect on surface at least one
The data of irradiation position.In addition at least one described two measuring units are configured with least one for obtaining the rotation of the axle
The sensor at angle.Can be by the photograph of the light beam determined in multiple measurement positions, i.e., multiple spin angular positions by analytic unit
Penetrate position and determine that the angle of the parallel offset and horizontal and vertical of described two axles is deviateed, wherein this is typically via Curve Matching
It is achieved.
Background technology
For example can find in 434,849B1 in US6 with regard to the summary of this axle alignment measuring device, wherein also describing
A kind of data analysiss by the Curve Matching carried out for ellipse.
Axle alignment measuring device is described in DE3320163A1 and DE3911307A1, wherein the first measuring unit sends
One light beam, the light beam are returned the twin shaft photodetector of the first measuring unit by the mirror image prismatic reflection of the second measuring unit.
A kind of axle alignment measuring device is disclosed by DE3814466A1, wherein the first measuring unit sends a light beam, should
Light beam is irradiated to two of the second measuring unit in the axial direction successively on the twin shaft photodetector of optical setup.
A kind of axle alignment measuring device is described in DE3335336A1, wherein the first measuring unit and the second measurement are single
Unit all each sends a light beam and has twin shaft photodetector, wherein the light beam is each towards the inspection of another measuring unit
Survey device orientation.US6, also illustrates a kind of axle alignment measuring device according to the principle work in 873,931B1, two of which is surveyed
Amount unit is each configured with two double-axel acceleration sensors for the automatically anglec of rotation of acquisition axle.
A kind of measurement apparatus are described in EP2093537A1, wherein the first measuring unit sends a fan beam, should
Light beam is irradiated to two of the second measuring unit and isolates optical stripe detector arranged in parallel in side, wherein the inspection
It is covering of the fan perpendicular to the light beam to survey the longitudinally disposed of device, wherein not only describing determination that axle is mutually aligned and describing
The determination in coupling gap.
A kind of axle alignment measuring device is disclosed by WO2010/042039A1, two of which measuring unit each
The video camera being arranged in shell is configured with, wherein the shell side towards another unit is configured with optics specimen, the optics specimen
By the video camera imaging being oppositely arranged.The shell side here for being configured with the specimen is each configured with an opening, is opened by this
The specimen that mouth imaging is oppositely arranged.In a kind of optional embodiment, one of described two units are provided with video camera, rather than
Specimen is provided with, while another unit does not have video camera, but a three-dimensional specimen is equipped with.
A kind of axle alignment measuring device is described in EP1211480A2, wherein the first measuring unit is configured with a light
Source, the light source is by a light beam towards the second measuring unit orientation for being configured with focusing screen；The focusing screen dorsad the first measurement
The side of unit is imaged by the respective optical means on the visual detector for equally constituting the second measuring unit part.
Describe how to measure by gyro sensor in countershaft carrying out to locating tab assembly in US6,981,333B2
Period determines the vibration for occurring, to avoid as far as possible causing alignment measurement error due to this vibration.
In US5, a kind of axle alignment measuring method in 980,094, is described, wherein two surveys as in DE3335336A1
Ray Of Light is oriented by amount unit towards the twin shaft photodetector of respective another measuring unit, wherein in order to analyze for the two
The radial component of the point of irradiation of the light beam is assigned as the function of the anglec of rotation, and is directed to by the data of each of detector
Measurement data one sine curve of each Self Matching.Here by quantity of the data set based on the measurement point that determines and analyze and
The angle distribution of the measurement point determines a trust-factor.In addition here also advises, determined by, data set is manually or automatically
Suspicious data point is removed, wherein the data set for being then based on such reduction is implemented new Curve Matching and checks trust-factor
Whether it is improved due to the reduction of data set.But which does not mention whether can recognizing suspicious data point, except non-through
Cross and remove suspicious data point raising trust-factor.A kind of similar axle alignment side is described in US5,263,261
Method.
The content of the invention
The task of the present invention is to provide a kind of axle alignment measuring device and axle alignment measuring method, it is possible thereby to realize spy
Not simple and believable measurement.
According to the present invention, the task is able to by device according to claim 1 and method according to claim 28
Realize.
In a solution in accordance with the invention, what is had the advantage that is by angular velocity for each single measurement position
And angular acceleration, the tangential component of the irradiation position based on the time gap with measurement position before with measurement before
Difference and the irradiation position between the tangential component of the irradiation position of position and the irradiation position for matching the determination are at least
The degree of deviation between the curve of a part carries out the quality evaluation of attached data, and if the quality evaluation of data is less than threshold
Value, then it is determined that axle excludes the data of the measurement position from consideration when deviateing, believable measurement data can be with simple side
Formula is determined and to be in when needing and can be removed, with the credibility that axle determined by raising deviates.
The preferred embodiment of the present invention is drawn by dependent claims.
Description of the drawings
Elaborate the example of the present invention below by accompanying drawing, wherein：
Fig. 1 is the diagram side elevational schematic view of the axle alignment device of the invention according to the first example；
Fig. 2 is the perspective schematic perspective views of an example of the measuring unit with two photodetectors, the light detection
Device can be used in the device according to Fig. 1；
Irradiation position when Fig. 3 A and 3B are two axle parallel offsets or vertical axises deviation according to the light beam in the device of Fig. 1
Diagram schematic diagram；
Fig. 4 be when carrying out believable measurement relatively during the measurement during fully rotating axle the light beam of the device of Fig. 1 photograph
Penetrate the schematic diagram of position；
Fig. 5 is the outside drawing such as Fig. 4, there is shown with the relatively low measurement of degree of belief；
Fig. 6 is the outside drawing such as Fig. 4, wherein carrying out the measurement of the fully rotating part only about axle；
The schematic diagram that Fig. 7 is analyzed when being the curve determined when being measured according to Fig. 4 to 6；
Fig. 8 A and 8B are the examples of the measurement point of the modes of Fig. 4 to 7, there is shown with the measurement point of the curve with matching（Figure
8A）；Function of the percent deviation of each measurement point of the curve matched during Fig. 8 A are illustrated in Fig. 8 B as the anglec of rotation；
Fig. 9 A and 9B are such as Fig. 8 A i.e. outside drawing of 8B, to there is shown with another example；
Figure 10 is the outside drawing such as Fig. 1, wherein schematically illustrating a kind of optional measuring method；With
Figure 11 is the outside drawing such as Fig. 1, wherein schematically illustrating another optional measuring method.
Specific embodiment
A kind of device is schematically illustrated in Fig. 1, alignment of the first axle 10 relative to the second axle 12 is can determine by the device,
Wherein the second axle is connected with first axle by coupling 14.This two axle 10,12 is set to be mutually aligned.The device includes can be with
First measuring unit 16 of fixed placement on the outer surface of first axle 10, and can fix on the outer surface of the second axle 12 and put
The second measuring unit 18 put.First measuring unit 16 has the LASER Light Source 20 for one or more light beam 22 of generation, institute
State light beam and be oriented the second measuring unit 18 of sensing.Second measuring unit 18 with two in the axial direction optics deviate from each other and set
The detection surface 24 and 26 put, the typically each one twin shaft photodetector of freedom in the detection surface are constituted.It is described in order to determine
The deviation relative to each other of two axles 10 and 12, the collar are rotated jointly around its axis（Described two are normally only driven wherein
One of axle）；Here in the multiple measurement positions of spin angular position for respectively correspond toing a determination obtains the light beam 22 and exists
Irradiation position in described two detector surfaces 24 and 26.In the illustrated example, radial component represented with Y or Y ', and
Tangential component is represented with X or X '.
Additionally, second measuring unit 18 also has at least one sensor 28, the sensor 28 is suitable to obtain the second survey
The anglec of rotation for measuring unit 18 and the anglec of rotation and angular velocity and angular acceleration that thus obtain the axle 10 and 12.Here is preferred
For at least one dual axis accelerometer or at least one gyroscope, wherein the sensor is preferably configured as in both cases
MEMS component.For example describe to carry out the accurate anglec of rotation by two dual axis accelerometer sensors in US6,873,931B1
It is determined that.Additionally, the second measuring unit 18 also has the data of the data and optical pickocff 24 and 26 that are provided to sensor 28
Analytic unit 30, to determine that the axle to be analyzed, final deviates.
An example be figure 2 illustrates to illustrate how surface to be detected by the light that the example implementation sets gradually, its
In the principle specifically described in DE3814466A1.The second measuring unit of here 18 is configured with camera lens 32, beam splitter 34 with
And minute surface 36, wherein light beam 22 is incident passes through the camera lens 32 and reaches beam splitter 34, wherein a part for the light beam 22
Projected and be irradiated on the first detector 24 as light beam 22 ', while a part 22 ' for the light beam 22 ' by described point
Beam device 34 is irradiated on minute surface 36 and thus reflexes on the second detector 26.Said two inspections in the illustrated example
Survey device surface 24 and 26 not spatially to be axially offset but radial direction（Or it is tangential）Deviate, while 26 light of the second detector surface
Learn ground（Or virtually）It is axially offset to be arranged on after detector surface 24 due to the impact of the beam splitter 34 and minute surface 36
Face（That is, divided beams 22 ', 22 ' ' point of irradiation axially set gradually one for seemingly described two detector surfaces 24 and 26
Sample）.
In order to determine irradiation position of the light beam 22 in the first detector surface 24 or the second detector surface 26, such as
Fruit hot spot extends across multiple detector pixels, for example, can carry out center of gravity calculation.So determine the mode of the irradiation position
In detector itself can realize or realize in analytic unit 30.
The axle 10 and 12 is schematically illustrated in figures 3 a and 3b mutually with regard on the first detector 24 and the second detector 26
Irradiation position vertical parallel deviation or vertical angle deviate impact, wherein the irradiation position is shown respectively in axle 10,12
Skew during rotation.
During being illustrated that in Fig. 4 that normal conditions lower axle rotates, i.e., or there is parallel offset or there is vertical and water
The skew of irradiation position when the straight angle deviates.Here each obtains a circle in described two detector surfaces.In order to determine
Axle deviation is stated, generally so distributes the data with regard to irradiation position, i.e., so that irradiation position is in the detector adjacent to the light source
Radial component on surface 24（For example represented with Y1）A direction is assigned to, while irradiation position is on first sensor surface
24 and second sensor surface 26 on radial component difference（For example represented with " Y1-Y2 "）It is assigned to another direction.
Generally and ideally, so distribution measurement point position it is oval in one on, the ellipse is with the axle anglec of rotation as parameter.In Fig. 4
Zero point of the oval summit here corresponding to measuring unit in axle rotating operation described in the example for illustrating, 6 points, 3 points or nine
Point position（But these positions are not consistent with the oval summit under normal conditions）.The parameter of sought ellipse
Determined generally by means of the Curve Matching with measurement point.Then the axle can determine by the form of the ellipse for so determining
Parallel offset, vertical angle is deviateed and the angle of level is deviateed, as its in the figure 7 shown in.For example may be used in this association
To refer to DE3911307A1.
But the measurement point can't be exactly on elliptic curve in practice, because different measurement error can
Corresponding deviation can be caused.The reason for problem appeared in this association be for example coupling 14 substantially always or it is many or
There is gap less, it is not rigid attachment when rotated that this causes two axles 10,12, so as to for example when axle 10 is driven, axle
12 when rotary motion is started, do not rotate completely or rotate must be slower than the axle 10.Then this will cause measuring unit 16,
18 are subjected to displacement in the tangential direction toward each other, and this also have impact on light beam 22 in detector surface 24, the irradiation position on 26
Radial component.Violent angular acceleration for example can also cause axle and attached due to the elasticity of measuring unit 16,18 and inertia
There is tangential displacement between the measuring unit of category and cause rotating against between this two axles.Corresponding measuring unit and institute
State the non-optimal between axle, i.e., it is non-fully rigid to connect the deviation for also resulting in irradiation position.
What is figure 5 illustrates is the example of non-ideal measurement, wherein individually measurement point part significant departs from and survey
The ellipse of amount location matches.
In general, the standard deviation between the standard deviation of the measurement point and the ellipse for being matched is bigger, then curve
The result of matching and the axle for thereby determining that deviate more insincere.
The credibility of the Curve Matching can be improved, its method is individually measurement to be clicked through according to predetermined standard
Row quality evaluation and being analyzed, that is, carry out the measurement evaluated with poor quality is given no thought to during the Curve Matching
Point only gives its less weight.When quality evaluation is carried out to single measurement point（The measurement point respectively correspond tos spy
Fixed measurement position）, following standard can be adopted：Angular velocity and angular acceleration, one or more of irradiation positions it is tangential
Component is cut with the irradiation position of one or more measurement positions before based on the time gap with measurement position before
To the difference between component；The irradiation position or measurement point with match determined by irradiation position at least one of curve it
Between the degree of deviation, measurement during oscillation intensity, between the reference moment of the change of angular acceleration, measurement position and rotary motion
Time gap, wherein can for example be the beginning of rotary motion with reference to the moment；It is in order to obtain oscillation intensity, preferably corresponding to constitute
It is provided for obtaining the sensor 28 of the anglec of rotation；The especially particularly suitable accelerometer sensor of here.The oscillation intensity of measurement point
Bigger, then its evaluation is poorer.
Additionally, closer to the beginning of rotary motion, then the evaluation of measurement point is poorer, because when axle 10,12 are run,
The coupling gap for example plays a significantly greater role, and thus can correspondingly damage measurement result.
The change of angular acceleration or angular acceleration is bigger, then measurement point evaluates poorer because in larger angular acceleration or
There is the danger that error occurs in measured value due to inertia effects in the case of the acceleration acute variation.
Higher angular velocity also results in the poor evaluation of measurement position.
It is preferred that the tangential component of the irradiation position based on the time gap with measurement position before with survey before
Difference between the tangential component of the irradiation position of amount position is bigger, then measurement point evaluates poorer, because which implys that described two
In measurement moment different angular velocity, this subsequently can seriously damage measurement result to axle.
Although generally speaking this can improve axle deviates the credibility for determining, substantially without the measurement position time
Go through the fully rotating of the axle 10,12.The substitute is, which also be enough to only carry out by the part rotation of the axle 10,12
Measurement, because can be so-called to be extrapolated by remaining rotation angle range by Curve Matching.Its example figure 6 illustrates,
Wherein rotation angle range is only 100 °.
Here can also be traveled through after specific angle range by single after certain amount of measurement position is traveled through
Measurement position implement traversed so far measurement position data total quality evaluation.Here can also be based on and travel through so far
The measurement position crossed carries out Curve Matching, and the report of total quality determined by can exporting.
For example total quality evaluation can be realized by the appropriate ways of single quality evaluation.Here can also determine described
The threshold value of the total quality of measurement, wherein and then according to determine total quality whether already exceed the threshold value or not less than,
Following message is exported, i.e., the measurement can terminate or the measurement must also proceed, to obtain enough quality.Cause
This is when for example in measurement more than 90 °（For example due to coupling gap is larger and/or occurs suddenly rotary motion）Only exist
During relatively poor measurement position, analytic unit 30 determines whether the measurement must continue to carry out.In contrast, if deposited
In extraordinary measurement point, then can terminate the measurement.
In addition to the quality evaluation of single measurement position can with evaluate total quality when be also adopted by across rotation
The distribution of the measurement position at angle and the quantity of measurement position.Here being uniformly distributed and substantial amounts of measurement position across the anglec of rotation
Higher quality evaluation can be caused.
The average deviation of the single measurement point of the curve for being matched, i.e., the standard deviation of described matching can be it is determined that whole
Pay attention to during weight.
Another example for the analysis of the measured value with fault measuring point is shown, wherein in traversal in Fig. 8 A and 8B
Measured value is only considered in order to carry out Curve Matching in ellipse, which is 5% to the maximum with the deviation of the ellipse for matching all measurement points
（Black circles）, while the measured value with relatively large deviation is not considered when matching（Empty circles）（Which is all in matching
The ellipse obtained during measurement point is shown in broken lines in fig. 8 a）.
Fig. 9 A with similar example is shown in 9B.
As described above, for the anglec of rotation sensor 28 can be an at least twin shaft accelerometer sensor.But
It is for the precision for improving angle acquisition, it is also possible to which two such accelerometer sensors are set.
While being only that the second measuring unit is configured to the sensor of anglec of rotation determination in thus far described embodiment,
At least one rotation angle sensor can also all be configured for two measuring units according to optional embodiment（In FIG first
Such a Additional rotation angle sensor sheet of measuring unit 16 is shown as 38）.In such a case it is necessary to survey first and second
Amount unit 16, arranges data cube computation between 18, thus analytic unit 30 can consider the data of all existing rotation angle sensors.
Then here determines that the spin angular position determined by the first measuring unit 16 and the data using the second measuring unit 18 determine
Spin angular position between difference, to thereby determine that coupling gap and when the quality evaluation of single measurement position is carried out
And/or carry out considering the coupling gap when total quality is evaluated.
As described above, the determination of the irradiation position of light beam 22 is each realized by a twin shaft photodetector.But it is optional
Be substantially can also be by the detection surface, i.e., described light beam irradiation surface thereon be configured to scattering surface or focusing screen,
Wherein described detection surface is then by image mechanism into the video camera is directed to the scattering surface in the case of scattering surface
The incident direction towards light beam side and the dorsad light beam of the focusing screen be directed in the case of focusing screen enter
Penetrate the side in direction.It is then act through image procossing and determines the irradiation position.
The measurement data pretreatment that the quality evaluation by single measurement position of substantially proposed type is carried out
Can be used for other optic axises and be directed at measuring method.
Therefore for example figure 10 illustrates a kind of for a kind of example of method, the first measuring unit 18 had been both in the method
Also there is a twin shaft photodetector 25 with light source 20, while the second measuring unit 18 has reflector arrangement 40, will be by
The light beam of the output of the first measuring unit 20 is reflexed in detector surface 25.In this case, in order to carry out Curve Matching and
Using radial component Y and tangential component X of irradiation position of the light beam 22 ' of the reflection in the detector surface 25, its
In produced in detector surface 25 again one it is oval.
Typically, the reflector arrangement 40 has two reflecting surfaces 42,44 for arranging at right angles to each other, the table
The light beam 22 of incidence is each reflected in face successively, and the light beam is turned back in the detector surface 25；The two surfaces 42,44
Here is set to the angle between vertical line less than about 45 ° and extends in tangential direction.The reflector arrangement 40 can
Constituted according to the type of minute surface with here as shown in Figure 10, or which is configured to prism, is particularly configured to Pu Luoleng
Mirror is configured to prism.Such a system is for example had been described in DE3911307A1.
Another optional measuring method figure 11 illustrates, and each in two of which measuring unit 16,18 is distinguished
It is configured with light source 20 and a twin shaft photodetector 25.20 here of light source of the first measuring unit 16 is directed towards the second measurement
The detector 25 of unit 18, and the light source 20 of the second measuring unit 18 is directed towards the detector of the first measuring unit 16
25.The analysis here of measurement point with according to the Measurement principle similar mode of Fig. 1 to 7 realize, that is, be assigned as this two
Difference of the radial component of the point of irradiation on one of individual detector relative to the radial component of the point of irradiation on the two detectors；So
Afterwards the point so specified is matched with an ellipse.
Claims (31)
1. one kind is used for the relative position of the second axle (12) for determining first axle (10) and connecting with first axle by coupling (14)
The device put, with the first measuring unit for being placed on the outer surface of first axle, for being placed on the appearance of the second axle
The second measuring unit on face, and analytic unit (30),
At least one wherein described two measuring units have part (20) and the institute at least one light beam of generation (22)
State at least one two measuring units with detection part (24,25,26), with obtain be related to the light beam at least one detection
Surface (24,25,26) on irradiation position data,
At least one wherein described two measuring units are configured with least one for obtaining the sensor of the anglec of rotation of the axle
(28), the wherein sensor is dual axis accelerometer or gyroscope,
Wherein described analytic unit is configured to determine the respective of the axle by the sensing data in multiple measurement positions
Spin angular position, angular velocity and angular acceleration, and determine the light beam described from the data provided by the detection part
Respective irradiation position at least one detection surface, and at least a portion of irradiation position determined by passes through curve
With the deviation for determining the axle,
And wherein described analytic unit is also configured to carry out by least following standard for each single measurement position attached
The quality evaluation of category data：
Angular velocity and angular acceleration,
The tangential component of the irradiation position based on the time gap with measurement position before with measurement position before
Difference between the tangential component of irradiation position,
The irradiation position with match determined by irradiation position at least one of curve between the degree of deviation,
And, if the quality evaluation of ancillary data is less than threshold value, it is determined that axle excludes the measurement position from consideration when deviateing
The data put give its relatively low weight.
2. device according to claim 1, it is characterised in that at least one sensor (28) is configured to survey for each
Amount position acquisition vibration, wherein when the quality of the ancillary data is evaluated using respective oscillation intensity as another standard, its
In higher oscillation intensity cause poor evaluation.
3. the device according to claim 1 or 2, it is characterised in that the analytic unit (30) is configured to evaluating described attached
Using the time gap between the reference moment of the measurement position to rotary motion as another standard during the quality of category data.
4. device according to claim 3, it is characterised in that the reference moment is the start time of rotary motion, wherein arriving
The relatively large distance of the start time of the rotary motion causes preferably evaluation.
5. device according to claim 1, it is characterised in that the analytic unit (30) is configured to evaluating the data
Using the time change of the angular acceleration as another standard during quality.
6. device according to claim 5, it is characterised in that the larger time change of the angular acceleration causes poor commenting
Valency.
7. device according to claim 1, it is characterised in that higher angular velocity causes poor evaluation.
8. device according to claim 1, it is characterised in that higher angular acceleration causes poor evaluation.
9. device according to claim 1, it is characterised in that the tangential component of the irradiation position based on measurement position before
The time gap put and larger difference and the tangential component of the irradiation position of measurement position before between causes poor evaluation.
10. device according to claim 1, it is characterised in that the quality evaluation of measurement position is poorer in the Curve Matching,
Then which adopts lower weight.
11. devices according to claim 1, it is characterised in that the analytic unit (30) is configured to through specific quantity
Measurement position after implement the overall matter of the data of measurement position passed through so far by the quality evaluation of single measurement position
Amount is evaluated, with the Curve Matching that carries out based on the measurement position passed through so far, and to provide with regard to fixed total quality
Report.
12. devices according to claim 11, it is characterised in that whether threshold has been reached according to the total quality of the determination
Value, the content of the report is the end or continuation of the measurement.
13. according to the device of claim 11 or 12, it is characterised in that the analytic unit (30) is configured to it is determined that described
During total quality using the measurement position the angular distribution and described measurement position of rotation quantity.
14. devices according to claim 11, it is characterised in that it is determined that during the total quality using the irradiation position with
The average deviation being matched between curve.
15. devices according to claim 1, it is characterised in that at least one described two measuring units are configured with two acceleration
Flowmeter sensor.
16. devices according to claim 1, it is characterised in that at least one sensor (28) is to be configured to MEMS sensings
The accelerometer sensor of device module.
17. devices according to claim 1, it is characterised in that described two measuring units (16,18) in each be configured with
Sensor described at least one (28,38), wherein the analytic unit (30) is configured to by by the institute of the first measuring unit
State spin angular position and at least one sensor by the second measuring unit that the data of at least one sensor determine
The spin angular position that determines of data between matter of the difference to determine coupling gap and the single measurement position is carried out
Amount is evaluated and/or is carried out when total quality is evaluated and accounted for.
18. devices according to claim 1, it is characterised in that the detection part by least one twin shaft photodetector (24,
25,26) constitute.
19. devices according to claim 1, it is characterised in that the detection surface is made up of control surface and the test section
Part is by image mechanism into wherein the video camera is imaged towards the side of the light beam light incident side to the control surface.
20. devices according to claim 1, it is characterised in that the detection surface is made up of focusing screen and the detection part
By image mechanism into wherein the video camera is imaged to the side of the focusing screen dorsad light beam light incident side.
21. devices according to claim 1, it is characterised in that the first measuring unit (16) is configured with for producing at least one
The part (20) of light beam (22) and the second measuring unit (18) is provided with the detection part, wherein the detection part has
First detection surface (24) and the second detection surface (26), wherein the second detection surface is configured to optically in the axial direction
Deviate from the first detection surface and two detection surfaces are while (22 ', 22 ") are irradiated by least a portion of the light beam.
22. devices according to claim 21, it is characterised in that be equipped with beam splitter (34) before the first detection surface (24), will
A part (22 ") alignment, second detection surface (26) of the light beam (22).
23. according to the device of claim 21 or 22, it is characterised in that only with described two detections in the Curve Matching
Surface (24,26) on each on respective irradiation position radial component.
24. devices according to claim 23, it is characterised in that be that the Curve Matching is detected on surface (24) using first
The radial component of the irradiation position in the radial component of irradiation position and the first detection surface (24) and the second detection surface (26)
Difference.
25. devices according to claim 1, it is characterised in that the first measuring unit (16) is configured with for producing at least one
The part (20) and detection part (25) of light beam (22), wherein the second measuring unit (18) is with towards the anti-of the first detector unit
Mapper arrangement (40), to when measuring unit be placed on respective axle (10,12) on when reflected illumination on the detection surface
Light beam.
26. devices according to claim 25, it is characterised in that be that the Curve Matching is adopted on the detection surface (25)
Radial component and tangential component.
27. according to the device of claim 25 or 26, it is characterised in that the reflector arrangement (40) is configured to prism.
28. devices according to claim 27, it is characterised in that the reflector arrangement (40) is configured to general sieve prism.
29. devices according to claim 27, it is characterised in that the reflector arrangement (40) is configured to prism.
30. devices according to claim 21, it is characterised in that the curve is oval.
A kind of 31. relative positions of the second axle (12) for being used to determine first axle (10) and connect with first axle by coupling (14)
The method put, wherein
The first measuring unit (16) is placed on the outer surface of first axle, the second measuring unit is placed on the outer surface of the second axle
(18),
At least one light beam (22) and will be the beam alignment described two is produced by least one described two measuring units
In at least one measuring unit at least one detection surface (24,25,26),
The data of the irradiation position for being related to the light beam on described at least one detection surface are obtained in multiple measurement positions
And the anglec of rotation with regard to the axle is obtained at least one described two measuring units by least one sensor (28)
Data, the sensor is dual axis accelerometer or gyroscope,
Respective spin angular position, angular velocity and the angular acceleration of the axle are wherein determined by the sensing data, and by institute
State irradiation position data and determine respective irradiation position of the light beam on described at least one detection surface, and by being determined
At least a portion of irradiation position the deviation of the axle is determined by Curve Matching,
The quality evaluation of ancillary data is carried out for each single measurement position by least following standard wherein：
Angular velocity and angular acceleration,
The tangential component of the irradiation position based on the time gap with measurement position before with measurement position before
The difference of the tangential component of irradiation position,
The irradiation position with match determined by irradiation position at least one of curve between the degree of deviation,
And, if the quality evaluation of data is less than threshold value, it is determined that axle excludes the measurement position from consideration when deviateing
Data give its relatively low weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012022487.7A DE102012022487A1 (en) | 2012-11-19 | 2012-11-19 | Apparatus and method for determining the position of two coupled waves to each other |
| DE102012022487.7 | 2012-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103822595A CN103822595A (en) | 2014-05-28 |
| CN103822595B true CN103822595B (en) | 2017-04-05 |
Family
ID=49356312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310581105.6A Expired - Fee Related CN103822595B (en) | 2012-11-19 | 2013-11-18 | Apparatus and method for determining the relative position of two coupling spindles |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US9146101B2 (en) |
| EP (1) | EP2733459B1 (en) |
| JP (1) | JP6220243B2 (en) |
| CN (1) | CN103822595B (en) |
| BR (1) | BR102013029828A2 (en) |
| CA (1) | CA2833383C (en) |
| DE (1) | DE102012022487A1 (en) |
| MX (1) | MX2013013471A (en) |
| RU (1) | RU2590533C2 (en) |
| UA (1) | UA110377C2 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103822595A (en) | 2014-05-28 |
| EP2733459A1 (en) | 2014-05-21 |
| UA110377C2 (en) | 2015-12-25 |
| RU2590533C2 (en) | 2016-07-10 |
| CA2833383A1 (en) | 2014-05-19 |
| DE102012022487A1 (en) | 2014-05-22 |
| US9146101B2 (en) | 2015-09-29 |
| JP2014102251A (en) | 2014-06-05 |
| EP2733459B1 (en) | 2019-07-10 |
| BR102013029828A2 (en) | 2014-09-23 |
| CA2833383C (en) | 2016-01-26 |
| RU2013151306A (en) | 2015-05-27 |
| MX2013013471A (en) | 2014-05-22 |
| JP6220243B2 (en) | 2017-10-25 |
| US20140139823A1 (en) | 2014-05-22 |
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